/**
 * @file
 * lwIP Error codes
 */
/*
 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * This file is part of the lwIP TCP/IP stack.
 *
 * Author: Adam Dunkels <adam@sics.se>
 *
 */
#ifndef LWIP_HDR_ERR_H
#define LWIP_HDR_ERR_H

#include "lwip/opt.h"
#include "lwip/arch.h"

#ifdef __cplusplus
extern "C" {
#endif

/**
 * @defgroup infrastructure_errors Error codes
 * @ingroup infrastructure
 * @{
 */

/** Definitions for error constants. */
typedef enum {
    /** No error, everything OK. */
    ERR_OK = 0,
    /** Out of memory error.     */
    ERR_MEM = -1,
    /** Buffer error.            */
    ERR_BUF = -2,
    /** Timeout.                 */
    ERR_TIMEOUT = -3,
    /** Routing problem.         */
    ERR_RTE = -4,
    /** Operation in progress    */
    ERR_INPROGRESS = -5,
    /** Illegal value.           */
    ERR_VAL = -6,
    /** Operation would block.   */
    ERR_WOULDBLOCK = -7,
    /** Address in use.          */
    ERR_USE = -8,
    /** Already connecting.      */
    ERR_ALREADY = -9,
    /** Conn already established.*/
    ERR_ISCONN = -10,
    /** Not connected.           */
    ERR_CONN = -11,
    /** Low-level netif error    */
    ERR_IF = -12,

    /** Connection aborted.      */
    ERR_ABRT = -13,
    /** Connection reset.        */
    ERR_RST = -14,
    /** Connection closed.       */
    ERR_CLSD = -15,
    /** Illegal argument.        */
    ERR_ARG = -16
} err_enum_t;

/** Define LWIP_ERR_T in cc.h if you want to use
 *  a different type for your platform (must be signed). */
#ifdef LWIP_ERR_T
typedef LWIP_ERR_T err_t;
#else  /* LWIP_ERR_T */
typedef s8_t err_t;
#endif /* LWIP_ERR_T*/

/**
 * @}
 */

#ifdef LWIP_DEBUG
extern const char *lwip_strerr(err_t err);
#else
#define lwip_strerr(x) ""
#endif /* LWIP_DEBUG */

#if !NO_SYS
int err_to_errno(err_t err);
#endif /* !NO_SYS */

#ifdef __cplusplus
}
#endif

#endif /* LWIP_HDR_ERR_H */
